Hiroyuki Taguchi, Shizuoka-Ken JP

Hiroyuki Taguchi, Shizuoka-Ken JP

Patent application number

Description

Published

20090065999

SHEET STACK APPARATUS AND SHEET STACKING METHOD - A sheet stack apparatus comprises a storage portion configured to support sheets conveyed one by one in a standing position, a receiving portion configured to receive lower ends of the sheets supported by the storage portion, an assisting member configured to move from a first position to the storage portion side and at a second position where the assisting member contacts with the sheets conveyed to the storage portion, assist stacking of the sheets on the storage portion, and a holding member configured to move in correspondence with a movement of the assisting member via an attaching portion, when the assisting member is at the second position, separate from the lower ends of the sheets, and when the assisting member is at the first position where the assisting member is separated from the sheets supported by the storage portion, contact with the lower ends of the sheets, thereby hold them on the storage portion side.

03-12-2009

20090066012

SHEET STACK APPARATUS AND SHEET STACKING METHOD - A sheet stack apparatus comprises a storage portion configured to support sheets conveyed one by one in a standing position, an alignment member configured to move back and forth between a standby position and a predetermined position in a sheet width direction crossing a sheet conveying direction and contact with and align sheet edges in the sheet width direction at the predetermined position, and a controller configured to control the alignment member to move back and forth by the first number of times whenever sheets are stored in the storage portion and starting from a predetermined number of sheets before a last sheet of the sheets conveyed to the storage portion, and control the alignment member to move back and forth by the second number of times larger than the first number of times.

03-12-2009

20090166945

SHEET FINISHER, IMAGE FORMING APPARATUS, AND SHEET FINISHING METHOD - According to the invention, a sheet finisher has a folding mechanism, a discharging mechanism, a stacking mechanism, and a slip amount calculator. The folding mechanism forms a folding line by folding a sheet which an image forming unit discharges. The discharging mechanism discharges the sheet including the folding line which the folding mechanism forms. The stacking mechanism stacks the sheet which the discharging mechanism discharges. The slip amount calculator outputs a fullness state of the stacking mechanism to the image forming unit, if a slip amount of the discharging mechanism exceeds a threshold.

07-02-2009

20100009830

SHEET FOLDING APPARATUS, IMAGE FORMING APPARATUS USING THE SAME, AND SHEET FOLDING METHOD - A sheet folding apparatus includes a fold unit to fold a center of a sheet bundle to form a fold line, a reinforce roller which reciprocates along a direction of the fold line while nipping and pressing the fold line and reinforces the fold line of the sheet bundle, and a control section to changeably set the number of times of reciprocating movement of the reinforce roller according to a thickness of a sheet contained in the sheet bundle.

01-14-2010

20100117284

SHEET FOLDING APPARATUS, IMAGE FORMING APPARATUS, AND SHEET FOLDING METHOD - A sheet folding apparatus includes: a carrying path through which a printed sheet is carried and which has an exit facing upward; a tray on which the sheet carried through the carrying path is stacked while being vertically sloped; an assist roller which rotates in a manner of pushing the sheet against the tray and pushing the sheet upward on the tray before a rear end of the sheet is discharged from the exit after a forward end of the sheet passes the exit of the carrying path, and which rotates in a reverse direction in a manner of pushing the sheet downward on the tray after the rear end of the sheet is discharged from the exit; and a stacker which is provided below the tray and receives and supports the rear end of the sheet pushed down by the assist roller.

05-13-2010

20100194839

IMAGE ERASING APPARATUS - An image erasing apparatus includes: a scanner which detects a side of a sheet on which an image is formed using a thermally decolorable coloring agent; a heat roller which provides heat for the sheet having the image formed thereon; and a controller which causes a quantity of heat provided for the sheet from the heat roller when an image forming side detected by the scanner does not face the heat roller to be greater than a quantity of heat provided for the sheet from the heat roller when the image forming side faces the heat roller.

08-05-2010

20100196063

IMAGE FORMING APPARATUS - An image forming apparatus includes: a first image forming unit configured to form an image on a sheet using a first colorant to be heat-fixed on the sheet; a second image forming unit configured to form an image on the sheet using a second colorant that is erasable by heating; and a fixing device arranged further on a downstream side in a sheet conveying direction than the first image forming unit and further on an upstream side in the sheet conveying direction than the second image forming unit and capable of executing fixing processing for heat-fixing the image, which is formed on the sheet by the first image forming unit, on the sheet and executing erasing processing for heating the sheet, on which the image is formed with the second colorant, to erasing temperature to thereby erase the second colorant on the sheet.

08-05-2010

20100272449

IMAGE FORMING APPARATUS, IMAGE FORMING METHOD, AND COMPUTER-READABLE RECORDING MEDIUM HAVING IMAGE FORMING PROGRAM RECORDED THEREIN - There is provided an image forming apparatus including: an image data acquiring unit that acquires image data of an image formed on a sheet; an identification information acquiring unit that acquires identification information that identifies the sheet on which the image is formed; an image forming unit that forms an image based on the image data acquired by the image data acquiring unit on the sheet with a decolorable colorant which becomes colorless by a predetermined chemical reaction and that forms an identification information image based on the identification information on the sheet with a non-decolorable colorant which does not become colorless by the chemical reaction by which the decolorable colorant becomes colorless; and a storage control unit that stores the identification information and the image data of the image to be formed on the sheet, on which the identification information image corresponding to the identification information is formed, in a predetermined storage region in a correlated manner.

10-28-2010

20110065056

IMAGE DECOLORING DEVICE - An image decoloring device includes: a decoloring processing unit configured to perform decoloring for removing the color of a decolorable colorant; a sheet carrying unit configured to transfer a sheet and causing the sheet to pass through the decoloring processing unit; a print condition detection unit arranged upstream of a direction in which the sheet is transferred by the sheet carrying unit with respect to the decoloring processing unit, the print condition detection unit obtaining print condition information indicating the print condition of an image formed on the sheet; and a process controlling unit configured to control the decoloring processing unit based on a result of detection given from the print condition detection unit.

03-17-2011

20110065563

SHEET FOLDING APPARATUS, SHEET FINISHING APPARATUS HAVING THE SAME AND SHEET FOLDING METHOD - According to an embodiment, a sheet folding apparatus includes: a conveying roller pair configured to convey a sheet; a conveying path provided on a downstream side of the conveying roller pair, an opening being formed in a part of the conveying path if the sheet is triple-folded and being closed if the sheet is double-folded; a retracting conveying path, an inlet of which is opened to the opening of the conveying path and an outlet of which is closed by a stopper, the retracting conveying path leading the front end of the sheet, which is conveyed through the conveying path, from the inlet to the stopper and temporarily retracting the front of the sheet if the sheet is triple-folded; a first folding roller pair disposed near the inlet of the retracting conveying path, the first folding roller pair nipping, if the sheet is triple-folded, a bend caused by pushing of the sheet led by the conveying rollers into the retracting conveying path to form a first fold and nipping, if the sheet is double-folded, the front end of the sheet, which is conveyed through the closed conveying path, and conveying the sheet further downstream; and a second folding roller pair configured to further form a second fold in the sheet on which the first fold is formed to triple-fold the sheet, and form only the second fold in the sheet on which the first fold is not formed to double-fold the sheet.

03-17-2011

20110065574

IMAGE DECOLORING APPARATUS, IMAGE DECOLORING METHOD, AND SHEET TRANSFER APPARATUS - The present invention provides an image decoloring apparatus including a plurality of, at least three, sheet load portions, each of the portions being able to be loaded with a sheet, an decoloring portion which performs decoloring an image on a sheet formed with the decolorable colorant, a first sheet transfer portion which transfers the sheet loaded in each of the plurality of sheet load portions to the decoloring portion, and a second sheet transfer portion which transfers the sheet after the decoloring is performed thereto by the decoloring portion to each of the plurality of sheet load portions.

03-17-2011

20110068529

SHEET FINISHER, IMAGE FORMING APPARATUS, AND SHEET FINISHING METHOD - According to the invention, a sheet finisher has a folding mechanism, a discharging mechanism, a stacking mechanism, and a slip amount calculator. The folding mechanism forms a folding line by folding a sheet which an image forming unit discharges. The discharging mechanism discharges the sheet including the folding line which the folding mechanism forms. The stacking mechanism stacks the sheet which the discharging mechanism discharges. The slip amount calculator outputs a fullness state of the stacking mechanism to the image forming unit, if a slip amount of the discharging mechanism exceeds a threshold.

03-24-2011

20110074086

DECOLORIZING DEVICE AND METHOD FOR CONTROLLING DECOLORIZING DEVICE - According to one embodiment, a decolorizing device includes a first stacker to stack sheets to be decolorized images on the sheets, a second stacker arranged adjacent to the first stacker, wherein the sheets stacked on the first stacker is kept waiting on the second stacker in order to be decolorized the images, a pressing unit to urge the sheets stacked on the second stacker downward and keep the sheets stacked on the second stacker flat, an image decolorizing unit to decolorize the images on the sheets, and a sheet feed unit positioned on an upper surface of the pressing unit to convey the sheets pressed on the pressing unit from the second stacker to the image decolorizing unit.

03-31-2011

20110215520

SHEET FINISHING APPARATUS AND SHEET FINISHING METHOD - A sheet finishing apparatus includes an outer wall having a discharge port of sheets; a movable tray on which the sheets discharged from the discharge port are stacked, the movable tray vertically moving along the outer wall according to a stack amount of the sheets; a curl sensor that detects a curled state of the sheets before the sheets are discharged from the discharge port; and a control unit that controls at least one of a discharge speed of the sheets and a position of the movable tray according to the detected curled state of the sheets.

09-08-2011

20110218091

SHEET FINISHING APPARATUS AND SHEET FINISHING METHOD - According to an embodiment, there is provided a sheet finishing apparatus including a folding roller that nips the middle of bundle of sheets and forms a fold line, a fold reinforcing roller that reinforces the fold line by moving along the fold line while applying a pressure to the fold line, a stack tray that stacks the bundle and a control unit that sets the number of times of fold reinforcing performed by the fold reinforcing roller as a first number when it is determined that a quantity of stacked bundle on the stack tray is less than a predetermined standard quantity which is set to be less than a maximum stack quantity and sets the number of times of the fold reinforcing as a second number greater than the first number when it is determined that a quantity of the stacked bundle is greater than the predetermined standard quantity.

09-08-2011

20110221183

DECOLORING DEVICE, SHEET FEED METHOD, AND COMPUTER-READABLE RECORDING MEDIUM RECORDING SHEET FEED PROGRAM - There is provided a decoloring device including a decoloring unit, a first sheet conveying unit, a first sheet feed unit, a thickness detecting unit, a decolorability determining unit, and a second sheet feed unit. The first sheet conveying unit conveys the sheet to the decoloring unit. The first sheet feed unit feeds the sheet to the first sheet conveying unit. The decolorability determining unit determines whether or not the sheet which is subject to thickness detecting is decolorable by the decoloring unit based on a detection result in the thickness detecting unit. A second sheet feed unit is disposed at a downstream side in relation to the thickness detecting unit and at an upstream side in relation to the decoloring unit in a sheet conveying path by the first sheet conveying unit and feeds the sheet to the first sheet conveying unit.

09-15-2011

20110221851

PRINT STATE DETECTING DEVICE FOR PRINTED SHEET SURFACE, ERASING APPARATUS, AND PRINT STATE DETECTION METHOD FOR PRINTED SHEET SURFACE - There is provided a print state detection device for a printed sheet surface including a sheet conveying path on which a sheet printed with an image is conveyed, a contact member that contacts with the surface of the sheet moving on the sheet conveying path, a contact state detecting part that detects a physical phenomenon occurring when the contact member contacts with the sheet, a separating part that separates the difference in the physical phenomenon occurring when the contact member comes into contact with the ground of the sheet surface and when the contact member comes into contact with an image, based on detection information obtained by the detection of the contact state detecting part, and a print state determining part that determines the print state of an image on one sheet based on separation information obtained by the separation by the separating part.

09-15-2011

20110221852

Printing Sheet Reusability Determination Device, Erasing Device, Image Forming Device, and Printing Sheet Reusability Determination Method - A printing sheet reusability determination device includes a sheet carrying path that carries a second state sheet obtained by erasing an erasable image from a first state sheet on which the erasable image is printed, an imaging portion that images the second state sheet on the sheet carrying path, an illumination portion that illuminates the second state sheet on the sheet carrying path at a first irradiation angle when images remaining on the second state sheet are photographed, and at a second irradiation angle smaller than the first irradiation angle when a projected image generated by illuminating the second state sheet is photographed, an irradiation angle changing portion that changes the first irradiation angle and the second irradiation angle, and a reusability determination portion that determines whether or not to reuse the second state sheet based on imaging information obtained by the imaging of the imaging portion at the first irradiation angle and determines whether or not to reuse the second state sheet based on imaging information obtained by the imaging of the imaging portion at the second irradiation angle.

09-15-2011

20110221853

DEVICE DETECTING CURL OF SHEET AND IMAGE ERASING DEVICE - There is provided a device detecting curling of a sheet, the device including a first guide member carrying the sheet; a second guide member including a carriage path that is broader than the carriage path of the first guide member and accepting the curling of the sheet; and sensors with detection ranges into which a portion of the curling of the sheet enters, in the carriage path of the second guide member.

09-15-2011

20110222084

DECOLORING DEVICE, SHEET CONVEYING METHOD, AND COMPUTER-READABLE RECORDING MEDIUM RECORDING SHEET CONVEYING PROGRAM - There is provided a decoloring device including a decoloring unit, a first sheet conveying unit, a second sheet conveying unit, a reversing and conveying unit, a manual feed tray, and a manual discharge tray. The reversing and conveying unit is disposed adjacent to an outer wall of the decoloring device in relation to the first sheet conveying unit, and conveys once again the sheet, which is temporarily brought into the second sheet conveying unit after being decolored by the decoloring unit and is switch-back conveyed, to the first sheet conveying unit. The manual feed tray is provided at an outer wall side of the decoloring device adjacent to the reversing and conveying unit. The manual discharge tray is provided at a position of the outer wall side of the decoloring device adjacent to the reversing and conveying unit.

09-15-2011

20110222130

DECOLORING DEVICE, METHOD OF DETERMINING DECOLORING SUCCESS OR FAILURE AND COMPUTER-READABLE RECORDING MEDIUM RECORDING DECOLORING SUCCESS OR FAILURE DETERMINING PROGRAM - There is provided a decoloring device including a decoloring unit, a first sheet conveying unit, a pre-decoloring reading unit, a type determining unit, a second sheet conveying unit, a post-decoloring reading unit, a decoloring success or failure determining unit, and a determination criterion setting unit. The type determining unit determines the type of image on the sheet conveyed to the decoloring unit based on the reading result in the pre-decoloring reading unit. The post-decoloring reading unit reads an image on the sheet after the decoloring, which is conveyed by the second sheet conveying unit. The decoloring success or failure determining unit determines whether or not the decoloring in the decoloring unit is successful based on the reading result in the post-decoloring reading unit. The determination criterion setting unit sets a determination criterion in the decoloring success or failure determining unit, based on the type of image, which is determined by the type determining unit.

09-15-2011

20110222131

IMAGE ERASING APPARATUS AND IMAGE ERASING METHOD - An image erasing apparatus includes a scanning unit, a memory unit, an erasing unit, and a carrying unit. The scanning unit converts an image formed on a sheet into image data which is electronic data. The memory unit stores the image data converted by the scanning unit. The erasing unit erases the image formed on the sheet. The carrying unit carries the sheet to the scanning unit and the erasing unit in this order.

09-15-2011

20110222937

IMAGE PROCESSING DEVICE AND IMAGE PROCESSING METHOD - An image processing device has an image forming portion, a heating portion and a supplying portion. The image forming portion forms an image on a sheet. The heating portion heats the sheet on which the image is formed by the image forming portion at a predetermined temperature, to thereby fix the image on the sheet. The supplying portion supplies the sheet on which an image is fixed previously. Further, the heating portion heats the sheet on which the image is fixed and which is supplied from the supplying portion at a temperature higher than the predetermined temperature to thereby remove the image.

09-15-2011

20110222951

ERASING DEVICE, IMAGE FORMING APPARATUS, SHEET CASSETTE COMMON USE SYSTEM, AND A STORING METHOD OF ERASE-PROCESSED SHEETS - An erasing device includes an image erasing portion that erases an erasable image which is printed on a sheet using an erasable color material, a reusability determination portion that determines whether or not to reuse the sheet obtained by erasing the erasable image by the image erasing portion; a sorting carrying portion that carries the determined sheets to a carrying destination for reusable sheets and a carrying destination for non-reusable sheets according to the determination result from the reusability determination portion; a common sheet cassette that can be used in an image forming apparatus and detachably installed in the carrying destination for reusable sheets, and that stacks and contains the sheets from the sorting carrying portion therein; a storage medium that is installed in the common sheet cassette; and a communication portion that stores information regarding the sheets contained in the common sheet cassette in the storage medium.

09-15-2011

20110234735

IMAGE ERASING APPARATUS AND CONTROL METHOD FOR IMAGE ERASING APPARATUS - An image erasing apparatus includes: a supply unit which supplies a recording medium; a collection unit which collects the recording medium supplied by the supply unit; plural carrying roller pairs which carry the recording medium supplied by the supply unit, toward the collection unit; a detection unit which acquires information about a metallic foreign matter adhering to the recording medium; a heating unit which heats the recording medium to a color erasing temperature of a developer or higher; and a carrying control unit which decelerates a rotation speed of the plural carrying roller pairs from a first speed to a second speed when the information about the metallic foreign matter is acquired by the detection unit.

09-29-2011

20110234736

IMAGE ERASING APPARATUS, AND METHOD OF DETERMINING FOREIGN MATTER ATTACHED TO RECORDING MEDIUM SUPPLIED TO IMAGE ERASING APPARATUS - An image erasing apparatus includes: a supply unit that supplies a recording medium; a recovery unit that recovers the recording medium supplied by the supply unit; a plurality of pairs of carrying rollers that carry the recording medium supplied by the supply unit toward the recovery unit; a detecting unit that acquires information regarding foreign matter made of metal attached to the recording medium; a heating unit that heats the recording medium to a temperature equal to or higher than a color-erasing temperature of a developer; and a carriage control unit that reduces a rotation speed of the plurality of pairs of rollers from a first speed to a second speed when the detecting unit acquires the information regarding the foreign matter made of metal.

09-29-2011

20110235074

IMAGE FORMING APPARATUS (SHEET PROCESSING APPARATUS HAVING SPEED CONTROL FUNCTION) - According to one embodiment, an image forming apparatus including an image visualizing section configured to visualize image data with a visualizing agent to obtain a visible image, an image moving section configured to move the visible image obtained by the image visualizing section to a sheet medium, a productivity setting section configured to set a number of times the image moving section moves the visible image to the sheet medium per unit time, and a sheet medium supplying section configured to supply the sheet medium from a sheet medium storing section to the image moving section at predetermined timing conforming to the number of times of the movement of the visible image set by the productivity setting section.

09-29-2011

20110235075

DECOLORING APPARATUS - According to one embodiment, an decoloring apparatus includes: an decoloring processing unit configured to apply decoloring processing decoloring a color of an decolorable colorant; a sheet conveying unit configured to convey a sheet and cause the sheet to pass through the decoloring processing unit; an image reading unit arranged further on an upstream side than the decoloring processing unit in a sheet conveying direction by the sheet conveying unit and configured to read an image formed on the sheet conveyed by the sheet conveying unit; a thickness sensor arranged further on the upstream side than the decoloring processing unit in the sheet conveying direction by the sheet conveying unit and configured to detect thickness of the sheet conveyed by the sheet conveying unit; an decolorability determining unit configured to determine, on the basis of a detection result in at least one of the image reading unit and the thickness sensor, executability of the decoloring processing in the decoloring processing unit of the sheet set as a detection target; a storing unit configured to store information indicating a number of sheets determined as decoloring processing unexecutable by the decolorability determining unit; and a display control unit configured to cause a display to screen-display the information stored in the storing unit indicating the number of sheets determined as decoloring processing unexecutable by the decolorability determining unit.

09-29-2011

20110236843

DECOLORING APPARATUS - According to one embodiment, an decoloring apparatus includes: an decoloring processing unit configured to apply decoloring processing decoloring a color of an decolorable colorant; a sheet conveying unit configured to convey the sheet and cause the sheet to pass through the decoloring processing unit; an image reading unit arranged further on an upstream side than the decoloring processing unit in a sheet conveying direction by the sheet conveying unit and configured to read the image formed on the sheet conveyed by the sheet conveying unit; a thickness sensor arranged further on the upstream side than the decoloring processing unit in the sheet conveying direction by the sheet conveying unit and configured to detect thickness of the sheet conveyed by the sheet conveying unit; an decolorability determining unit configured to determine, on the basis of a detection result in at least one of the image reading unit and the thickness sensor, executability of the decoloring processing in the decoloring processing unit of the sheet set as a detection target; a storing unit configured to store information indicating a number of sheets determined as decoloring processing unexecutable by the decolorability determining unit; and a display control unit configured to cause, when the apparatus is started, a display to screen-display the information stored in the storing unit indicating the number of sheets determined as decoloring processing unexecutable by the decolorability determining unit.

09-29-2011

20120025439

SHEET PROCESSING APPARATUS, IMAGE FORMING SYSTEM AND SHEET PROCESSING METHOD - According to one embodiment, a sheet processing apparatus includes a reinforce roller to further reinforce the fold of a sheet which has been folded by a fold roller pair, a support portion to move the reinforce roller in a direction perpendicular to a sheet conveying direction, a sensor to sense a position of the support portion, a distance sensing portion to sense a distance to a first position and a distance to a second position from a stop position of the support portion, when the sensor senses an abnormal stop of the support portion, and a control unit to compare the distance to the first position and the distance to the second position sensed by the distance sensing portion and to control the support portion to move in a direction where a moving distance is shorter.

02-02-2012

20120025454

DECOLORING APPARATUS AND SHEET CONVEYANCE CONTROL METHOD - A sheet conveyance control method in an apparatus including a first conveying path for leading a sheet from a feeing port to a discharge port, a second sheet conveying path for leading the sheet to another conveyance destination, and a decoloring processing section configured to decolor an image formed on the sheet includes: detecting the length of the sheet further on a downstream side than the feeding port and further on an upstream side than a branching point of the first and second sheet conveying paths in a sheet conveying direction of the first sheet conveying path; and changing, if the trailing end of the sheet is not detected in a period after the leading end of the sheet is detected and before the leading end of the sheet reaches the branching point, a first flapper to a state in which the sheet is conveyed to the discharge port.

02-02-2012

20120026531

DECOLORING DEVICE AND FUNCTION MANAGEMENT METHOD - When the presence or absence of a malfunction is respectively determined in a decoloring section or a separation device, and it is determined that either the decoloring section or the separation device is malfunctioning, only the other is executable.

02-02-2012

20120038732

DECOLORING APPARATUS AND SHEET TRANSPORT CONTROL METHOD - There is provided a decoloring apparatus including: an image reading unit; a decoloring processing unit; a transmission unit which transmits image data read by the image reading unit to a predetermined management apparatus; a receiving unit which receives a result of determination processing performed on the side of the management apparatus for the sheet from which the image data was read, based on the image data transmitted by the transmission unit; and a transport control unit which controls sheet transport time intervals for secondly or later transported sheets based on a time period from transmission of the image data of a firstly transported sheet by the transmission unit until receiving of the determination result for the firstly transported sheet by the receiving unit if the image reading unit is caused to sequentially read images on three or more sheets.

02-16-2012

20120038733

DECOLORING APPARATUS TO CONTINUOUSLY ERASE IMAGES OF SHEETS, DECOLORING SYSTEM AND PAPER FEEDING METHOD OF DECOLORING APPARATUS - A decoloring apparatus includes a conveyance path, a paper feeding part, a reading part, a communication part, a decoloring part and a control part. The conveyance path conveys a sheet to respective parts in the apparatus. The paper feeding part feeds a sheet on which an image is formed by a decolorable colorant to the conveyance path from a sheet stack part. The reading part is provided downstream of the paper feeding part in the conveyance path and reads the image of the sheet. The communication part transmits read image data of a preceding sheet to a management apparatus communicably connected to the decoloring apparatus and receives a determination result of a conveyance destination of the preceding sheet obtained by the management apparatus based on the image data. The decoloring part is provided downstream of the reading part in the conveyance path and erases the image of the sheet. After the communication part receives the determination result of the conveyance destination of the preceding sheet obtained by the management apparatus, the control part conveys the preceding sheet subjected to reading to the determined conveyance destination, and reads an image of a subsequent sheet by the reading part so that a leading edge of the subsequent sheet does not collide with a trailing edge of the preceding sheet.

SHEET FOLDING APPARATUS, IMAGE FORMING APPARATUS USING THE SAME, AND SHEET FOLDING METHOD - A sheet folding apparatus includes a fold unit to fold a center of a sheet bundle to form a fold line, a reinforce roller which reciprocates along a direction of the fold line while nipping and pressing the fold line and reinforces the fold line of the sheet bundle, and a control section to changeably set the number of times of reciprocating movement of the reinforce roller according to a thickness of a sheet contained in the sheet bundle.

03-15-2012

20120148327

ERASING APPARATUS AND CONVEYANCE CONTROL METHOD FOR RECORDING MEDIUM - According to one embodiment, a erasing apparatus includes: a paper feeding section configured to feed a recording medium on which a erasable image is recorded to a conveying path; a conveying section configured to convey the recording medium along the conveying path; a erasing section configured to erase a color of the image on the recording medium; a sensor configured to detect the recording medium conveyed through the erasing section by the conveying section; and a control section configured to perform, if the sensor detects occurrence of a jam of the recording medium, control to convey the recording medium present in the conveying path.

06-14-2012

20120149562

DECOLORING APPARATUS AND CONTROL METHOD FOR DECOLORING APPARATUS - According to one embodiment, first and second branch paths of a decoloring apparatus are formed downstream in a sheet conveying direction of a reading section in a conveying path. A diverting section is provided at a branch point of the first and second branch paths in the conveying path. A control section determines on the basis of image data whether decoloring processing should be applied to a sheet, diverts, if determining that the decoloring processing should be applied to the sheet, the sheet to the first branch path with the diverting section, and diverts, if determining that the decoloring processing should not be applied to the sheet, the sheet to the second branch path with the diverting section. A decoloring section is provided between the reading section and the branch point in the conveying path and heats the sheet to decolor an image formed with a decolorable color material.

06-14-2012

20130010046

IMAGE ERASING APPARATUS AND CONTROL METHOD FOR IMAGE ERASING APPARATUS - An image erasing apparatus includes: a supply unit which supplies a recording medium; a collection unit which collects the recording medium supplied by the supply unit; plural carrying roller pairs which carry the recording medium supplied by the supply unit, toward the collection unit; a detection unit which acquires information about a metallic foreign matter adhering to the recording medium; a heating unit which heats the recording medium to a color erasing temperature of a developer or higher; and a carrying control unit which decelerates a rotation speed of the plural carrying roller pairs from a first speed to a second speed when the information about the metallic foreign matter is acquired by the detection unit.

01-10-2013

20130015623

DECOLORIZING DEVICE AND METHOD FOR CONTROLLING DECOLORIZING DEVICE - According to one embodiment, a decolorizing device includes a first stacker to stack sheets to be decolorized images on the sheets, a second stacker arranged adjacent to the first stacker, wherein the sheets stacked on the first stacker is kept waiting on the second stacker in order to be decolorized the images, a pressing unit to urge the sheets stacked on the second stacker downward and keep the sheets stacked on the second stacker flat, an image decolorizing unit to decolorize the images on the sheets, and a sheet feed unit positioned on an upper surface of the pressing unit to convey the sheets pressed on the pressing unit from the second stacker to the image decolorizing unit.

01-17-2013

20130287416

IMAGE FORMING APPARATUS - An image forming apparatus includes: a first image forming unit configured to form an image on a sheet using a first colorant to be heat-fixed on the sheet; a second image forming unit configured to form an image on the sheet using a second colorant that is erasable by heating; and a fixing device arranged further on a downstream side in a sheet conveying direction than the first image forming unit and further on an upstream side in the sheet conveying direction than the second image forming unit and capable of executing fixing processing for heat-fixing the image, which is formed on the sheet by the first image forming unit, on the sheet and executing erasing processing for heating the sheet, on which the image is formed with the second colorant, to erasing temperature to thereby erase the second colorant on the sheet.

10-31-2013

20140015913

DEVICE DETECTING CURL OF SHEET AND IMAGE ERASING DEVICE - There is provided a device detecting curling of a sheet, the device including a first guide member carrying the sheet; a second guide member including a carriage path that is broader than the carriage path of the first guide member and accepting the curling of the sheet; and sensors with detection ranges into which a portion of the curling of the sheet enters, in the carriage path of the second guide member.

01-16-2014

20140104362

IMAGE PROCESSING DEVICE AND IMAGE PROCESSING METHOD - An image processing device has an image forming portion, a heating portion and a supplying portion. The image forming portion forms an image on a sheet. The heating portion heats the sheet on which the image is formed by the image forming portion at a predetermined temperature, to thereby fix the image on the sheet. The supplying portion supplies the sheet on which an image is fixed previously. Further, the heating portion heats the sheet on which the image is fixed and which is supplied from the supplying portion at a temperature higher than the predetermined temperature to thereby remove the image.

04-17-2014

20140112693

IMAGE FORMING APPARATUS - An image forming apparatus includes: a first image forming unit configured to form an image on a sheet using a first colorant to be heat-fixed on the sheet; a second image forming unit configured to form an image on the sheet using a second colorant that is erasable by heating; and a fixing device arranged further on a downstream side in a sheet conveying direction than the first image forming unit and further on an upstream side in the sheet conveying direction than the second image forming unit and capable of executing fixing processing for heat-fixing the image, which is formed on the sheet by the first image forming unit, on the sheet and executing erasing processing for heating the sheet, on which the image is formed with the second colorant, to erasing temperature to thereby erase the second colorant on the sheet.